Journal of Photochemistry and Photobiology B-biology
Papers 6,024
1 page of 603 pages (6,024 results)
#1Gabriela Leite (Cedars-Sinai Medical Center)H-Index: 5
#2Ali Rezaie (Cedars-Sinai Medical Center)H-Index: 33
Last. Mark Pimentel (Cedars-Sinai Medical Center)H-Index: 62
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Abstract null null Mitochondrial antiviral signaling (MAVS) protein mediates innate antiviral responses, including responses to certain coronaviruses such as severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). We have previously shown that ultraviolet-A (UVA) therapy can prevent virus-induced cell death in human ciliated tracheal epithelial cells (HTEpC) infected with coronavirus-229E (CoV-229E), and results in increased intracellular levels of MAVS. In this study, we explored the mech...
#1Anjali Bindu Ramesan (NIIST: National Institute for Interdisciplinary Science and Technology)H-Index: 1
#2Sandeepa Kulala Vittala (NIIST: National Institute for Interdisciplinary Science and Technology)H-Index: 4
Last. Joshy Joseph (NIIST: National Institute for Interdisciplinary Science and Technology)H-Index: 16
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Abstract null null DNA nanotechnology propose various assembly strategies to develop novel functional nanostructures utilizing unique interactions of DNA with small molecules, nanoparticles, polymers, and other biomolecules. Although, well defined nanostructures of DNA and amphiphilic small molecules were achieved through hybridization of covalently modified DNA, attaining precise organization of functional moieties through non-covalent interactions remain as a challenging task. Herein, we repor...
#1Muhammad Farrukh Nisar (CQU: Chongqing University)H-Index: 12
#2Tiantian Liu (CQU: Chongqing University)
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Solar UVA irradiation-generated reactive oxygen species (ROS) induces the expression of matrix metalloproteinase 1 (MMP-1), leading to photoaging, however the molecular mechanism remains unclear. In the present study, we found that eriodictyol remarkably reduces UVA-mediated ROS generation and protects the skin cells from oxidative damage and the ensuing cell death. Moreover eriodictyol pretreatment significantly down-regulates the UVA-induced MMP-1 expression, and lowers the inflammatory respon...
#1Marzia B. Gariboldi (University of Insubria)H-Index: 26
#2Emanuela Marras (University of Insubria)H-Index: 18
Last. Enrico Caruso (University of Insubria)H-Index: 14
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Abstract null null Photodynamic therapy (PDT) is a clinically approved cancer treatment in which reactive oxygen species are formed only when three harmless components, a photosensitizer (PS), light and molecular oxygen, are present at the same time, leading to cell death. Most of the PSs were tested on monolayer cells, but differences between 2D cells and solid tumors significantly limit the value of in vitro PDT studies, whereas the use of 3D spheroid might be more suitable for drug developmen...
#1Clara Maria Gonçalves de Faria (USP: Universidade de São Paulo)H-Index: 4
#2Claudia P. Barrera-Patiño (USP: Universidade de São Paulo)
Last. Vanderlei Salvador Bagnato (USP: Universidade de São Paulo)H-Index: 64
view all 5 authors...
Abstract null null Purpose null To investigate the safety of photobiomodulation therapy (PBM) in tumors and its potential as a radiosensitizer when combined with radiotherapy. null null null Methods null We have performed in vitro experiments in A431 cells to assess proliferation and cell cycle after PBM, as well as clonogenic assay and H2AX-gamma immunolabeling to quantify double strand breaks after the combination of PBM and radiation. In vivo experiments in xenografts included Kaplan-Meier su...
#1Sayantan Halder (Birla Institute of Technology and Science, Pilani)H-Index: 5
#2Rishika Aggrawal (Birla Institute of Technology and Science, Pilani)H-Index: 4
Last. Subit K. Saha (Birla Institute of Technology and Science, Pilani)H-Index: 21
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Abstract null null This work demonstrates binding interactions of two cationic gemini surfactants, 12-4-12,2Br− and 12-8-12,2Br− with gold nanoparticles (AuNPs)-conjugated bovine serum albumin (BSA) presenting binding isotherms from specific binding to saturation binding regions of surfactants. The binding isotherm has been successfully constructed using Forster's resonance energy transfer (FRET) and nanometal surface energy transfer (NSET) parameters calculated based on fluorescence quenching o...
#1Daniel Alejandro Heredia (UNRC: National University of Río Cuarto)H-Index: 9
#2Javier Durantini (UNRC: National University of Río Cuarto)H-Index: 12
Last. Edgardo N. Durantini (UNRC: National University of Río Cuarto)H-Index: 38
view all 8 authors...
Abstract null null Two novels structurally related pyrrolidine-fused chlorins were synthesized from 5,10,15,20-tetrakis(pentafluorophenyl)chlorin by nucleophilic aromatic substitution of the para-fluoro groups. The reaction with 2-dimethylaminoethanol produced TPCF16-NMe2 in 77% yield, while TPCF16-NBu was obtained using butylamine in 87% yield. The latter was extensively methylated to form TPCF16-N+Bu in 92% yield. The synthetic strategy was designed to compare the effect of charge density dist...
#1Belkiss Câmara Mármora (UFRGS: Federal University of Rio Grande do Sul)H-Index: 1
#2Fernanda Thomé Brochado (UFRGS: Federal University of Rio Grande do Sul)H-Index: 1
Last. Vivian Petersen Wagner (UNICAMP : State University of Campinas)H-Index: 13
view all 11 authors...
Abstract null null Skin wounds represent a burden in healthcare. Our aim was to investigate for the first time the effects of defocused high-power diode laser (DHPL) on skin healing in an animal experimental model and compare it with gold standard low-level laser therapy. Male Wistar rats were divided into 5 groups: Negative control; Sham; 0.1 W laser (L0.1 W); DHPL Dual 1 W (DHPLD1 W); and DHPL Dual 2 W (DHPLD2 W). Rats were euthanized on days 3, 5, 10, 14 and 21. Clinical, morphological, Picro...
#1Gabriela Carvalho Andrade (USP: Universidade de São Paulo)
#2Guilherme T. P. Brancini (USP: Universidade de São Paulo)H-Index: 10
Last. Gilberto U.L. Braga (USP: Universidade de São Paulo)H-Index: 31
view all 11 authors...
The widespread use of conventional chemical antifungal agents has led to worldwide concern regarding the selection of resistant isolates. In this scenario, antimicrobial photodynamic treatment (APDT) has emerged as a promising alternative to overcome this issue. The technique is based on the use of a photosensitizer (PS) and light in the presence of molecular oxygen. Under these conditions, the PS generates reactive oxygen species which damage the biomolecules of the target organism leading to c...
#1Pedro J.L. Crugeira (UFBA: Federal University of Bahia)H-Index: 4
#2Paulo Fernando de Almeida (UFBA: Federal University of Bahia)H-Index: 16
Last. Antonio Luiz Barbosa Pinheiro (UFBA: Federal University of Bahia)H-Index: 39
view all 9 authors...
Oil recovery is a challenge and microbial enhanced oil recovery is an option. We theorized that the use of produced water (PW) with photo-stimulation could influence both production and viscosity of Xanthan gum. This study aimed at the evaluation of the effect of photo-stimulation by λ630 ± 1 ηm LED light on the biosynthesis of Xanthan gum produced by Xanthomonas campestris IBSBF 2103 strain reusing PW of the oil industry. We assessed the effect of photo-stimulation by LED light (λ630 nm) on the...
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